Rebirth of Military Workers

Chapter 873

Regardless of the price or other aspects of Feidun-359, the two parties did not have much opinion, and the contract was directly prepared.

When Ibrahim looked for Xie Kai again, he did not find anyone.

Xie Kai and Wang Guilin went to Dongfeng Power Plant.

In recent years, Dongfeng Power Plant is definitely the fastest growing unit in domestic aviation power systems, and it has networked almost all outstanding technicians from domestic power units.

Both the turbofan-8 for Yunshi and the turbofan-6 for the J-9 both continue to be developed at Dongfeng Power Plant, and small batches have begun.

The 45,000-ton large press was successfully put into production, making breakthroughs in the key manufacturing processes of these two projects. Now both projects have entered a period of rapid development.

Liao Dongfeng took Xie Kai and Wang Guilin to the assembly workshop while introducing the two projects.

Based on the original Rongcheng Engine Factory, the current precision machining workshops are almost all brand-new CNC machining equipment, and the workshops are much cleaner than before.

Regarding the machining workshop, neither Wang Guilin nor Xie Kai paid much attention.

In Chengdu, there is no unit that has more powerful mechanical processing equipment than the current Dongfeng Power Plant. After 404 took over the power plant, the investment in equipment and plant alone exceeded 200 million.

However, no matter how strong the machining capability here is, it cannot be as strong as the precision machinery workshop of the 404 base Hongqi Machinery Factory.

There is only one four-axis in Dongfeng Plant, which is the top equipment of the finale, and the five-axis linkage machining center is invisible here at all.

The four-axis of the Hongqi Factory has almost become the absolute main processing force, and the five-axis is now also beginning to play a role in the development of China’s national defense.

Therefore, these two people simply do not look down on this technology.

The overall turbine disc of the turbofan engine is processed by 404.

“How is the preparation for the Turbofan-10 project?” Xie Kai is most concerned about the Turbofan-10.

Only by developing a turbofan-10 with a thrust-to-weight ratio of 10, can we further improve the vector engine with a vector nozzle at the tail.

Without a vector engine, it would be a joke to engage in a stealth fighter.

“Still at the stage of demonstration. From the technical basis of turbofan-6 and turbofan-8 to engine with thrust-to-weight ratio of 10, theoretically, it is not easy to do it.” Liao Dongfeng’s tone had a lot of helplessness.

Domestic experience and technical reserves of turbofan engines are insufficient. It is indeed difficult to launch turbofan engines with a thrust-to-weight ratio of 10.

“We should do nothing less; now, it’s up to you.” Xie Kai said.

From the beginning, Xie Kai said, 404 is for aero engines, at any cost.

After the allocation from Dongfeng Power Plant to 404, there is no deduction at all in terms of infrastructure facilities or research funding.

In the entire 404 subsidiary factory, the research funding of Dongfeng Power Plant is even more than that of other projects such as Yunshi.

In order to solve the problem of aviation heart disease.

“For the specific situation, let Mr. Jiang introduce it.” Liao Dongfeng was sweating on his forehead.

Xie Kai didn’t say anything else. He knew that the engine was not that easy to get out. Think about it, it took several decades for the Qinling engine to get out. Now his expectations for Turbofan X are not so eager.

Even if a stealth J-20 is produced, it is absolutely confidential.

When the country’s economy has not developed, there will always be hundreds of millions of stealth fighters, not to mention that they cannot be equipped or used.

American F-22, flying for one hour, not counting maintenance, cost 160,000 US dollars, equivalent to soft sister currency, millions!

Now the Air Force can’t afford fighters like the F-14.

The domestically equipped J-7 and J-8 cannot be flew by the pilots with great enthusiasm.

Jiang Chenyang had received news from Wang Guilin and Xie Kai before, and had already been waiting in the office.

He usually works in the design room or other project teams, but not much time in the office.(Read more @ wuxiax.com)

Sun Hong, who is in charge of Turbofan-6, is also waiting in the office.

Both engines have been resolved due to key processes, and now they all enter intensive experiments before large-scale mass production. This is where the entire Dongfeng Power Plant will consume funds.

Originally, the engine has never been so uncomfortable.

“Director Wang, Xie Kai.” Seeing a few people enter the office, Jiang Chenyang and Sun Hong both stood up.

Wang Guilin pressed both hands to indicate that they don’t need to be polite.

“Two bosses, how is the situation now?” Xie Kai asked as soon as he opened his mouth.

Sun Hong looked at Xie Kai with a smile on his face, “At present, the Turbofan-6 is still undergoing continuous testing on the high-altitude platform. It has been engaged for more than 330 hours, and the goal is 500 hours. The problem should not be too big.”

The turbofan-6 was originally designed for the J-9 project.

The J-9 is dismounted, and the turbofan-6 engine is not interesting to continue research.

Fortunately now, in order to gain basic technology and experience, 404 still invested funds to continue to complete the modification of the turbofan-6 after purchasing 200 RD-33 engines from the Soviet Union.

This engine is not useless.

When the turbofan-6 was dismantled in 1984, the problems of the turbofan-6 encountered in the early stages of development, such as start-up difficulties, compressor surge, high turbine inlet temperature and large vibration, were all effectively solved, and even the improved turbofan-6G would increase the thrust-to-weight ratio. By 7.05, this is a very big improvement.

It’s just that I had to dismount because I lost the applicable object.

404 took over, and the Super-7 project was established, so there are applicable objects.

Not only the Super-7A project can use this kind of engine, its main purpose is to use the Super-7B.

“The high-altitude test bench has been running for 500 hours of long-term testing?” Xie Kai didn’t have many surprises.

The performance of the turbofan-6 is relatively advanced, but it is still inferior to the mainstream engines used in the current three-generation fighters around the world. It is not too easy to use for transport aircraft.

Therefore, the biggest role of Turbofan-6 is to serve as a foundation and accumulate experience.

“Yes. I have done more than 300 hours of test run of the whole machine before, and after continuing research and investment, a batch of 4 units have been produced again, which are mainly used for continuous high-altitude test bench test runs. Once completed, they can be used. Go to the military plane to conduct further experiments.” Sun Hong said excitedly.

Xie Kai is not as optimistic as he is, “What military plane to choose?”

“JH-7. At present, super-7A is not too suitable.” Sun Hong said.

If the JH-7 is replaced with an engine with a thrust-to-weight ratio of more than 7, there will be a large increase in range, ammunition capacity, or other aspects.

The exact details will not be known until the experiment on the aerial platform.

Xie Kai nodded, the turbofan-6 is progressing fast, which is expected.

When it took over, the research and development of the turbofan-6 already fully met the previous technical specifications, but the J-9 was dismounted.

“What about turbofan-8?” Xie Kai is more concerned about this.

To build the core engine of the turbofan, the turbofan-8, a turbofan engine imitating the American JT3D engine, is the real foundation.

At that time, we will integrate other technologies to create China’s own engine.

Whether it’s Super-7B, future stealth fighters, or even the 132’s No. 10 project, Xie Kai hopes that there will no longer be a lack of engines.

The J-10 was originally developed. When the Taihang engine was not yet domestically produced, it was the AL-31 engine imported from Russia. It was not until the Taihang mass-produced that it was finally replaced with a domestically produced heart.

What Xie Kai hopes is to have a Chinese heart, and then design and develop its own fighters based on the performance of the Chinese heart.

“The turbofan-8 is now also in the test run stage, and the new batch of engines has not yet begun to be assembled. During this time, standardization is mainly being carried out.” Jiang Chenyang said.

He was worried that Xie Kai would say that their progress was too slow.

“It’s a good thing to standardize first. It can’t be like before, three batches of 12 engines were produced, and there was no productivity.” Xie Kai nodded and said, “The turbofan-8 is for Yunshi. Now it is for Yunshi. The new model has been positioned as a 150-ton wide-body airliner. I don’t know the improvements on the turbofan-8…”

What Xie Kai worries about is that the engine will affect the future of Yunshi.

It is imperative to develop a wide-body airliner for the transportation of ten.

Once the engine matching fails to keep up, everything is useless.

“We talked with them before, and the improved turbofan-8 model is also prepared for this project. The assembly has just been completed, and the test run has not yet begun.”

The current progress is relatively good.

Every year, a large amount of 404 funds are invested in Dongfeng Power Plant. If you can’t keep up with the progress, it will be a bit unreasonable.

Liao Dongfeng has always been a little worried.

The purpose of Wang Guilin and Xie Kai’s visit was mainly for the turbofan-10, a high-thrust engine with a thrust-to-weight ratio of 10 or more.

But now, even the basic plan has not been determined.

The more Xie Kai asks about basic items, the more his worries will prevail.

The less he asked, the more worried he was.

Up to now, the turbofan-10 is still in the demonstration stage, and there is not even much achievement. Various evidences show that the current basis is not suitable for large thrust engines with such performance indicators, just as when it was just started to develop turbofans. In the case of -6, there is a lack of technical reserves and insufficient experimental research on main components, especially the low efficiency of the core compressor components, small surge margins, poor quality, and a series of problems.

Power-to-weight ratio of 7 to power-to-weight ratio of 10, the technical difficulty in the middle is far from simple as 7+3.

“So, turbofan-10 is not suitable for now?” Xie Kai frowned.

“It’s really not suitable.” As if he didn’t find Xie Kai’s attitude, Jiang Chenyang nodded seriously, “The technical performance index of turbofan-10 requires that the temperature of the turbofan inlet must be further increased, which needs to reach about 1450 degrees. Now The inlet temperature of our turbofan is less than 1200 degrees.”

“Material or craft?” Xie Kai took a deep breath.

He knew that it was not easy to build Turbofan-10, but he did not expect that he would eventually be blocked by basic technology.

“Whether it is the material or the process, there are problems. We need higher heat resistance and better strength superalloys. At the same time, we also need better manufacturing processes…”